Professional Single & Double Brake Flare Tool 3/16" to 3/8" Tube Size

Aeroflow Professional Brake Flare Tool: 3/16"–3/8" Tubing

Flare with confidence using the Aeroflow Brake Flaring Tool—the fast, reliable way to achieve professional single and double flares on 3/16" to 3/8" tubing. Designed for brake and transmission lines, it delivers accurate results without marring the tube, thanks to a smooth die that preserves tubing integrity.

What you get

• 6 assorted metric and imperial dies included, covering common tube sizes and configurations.
• Supports single and double flares for brake lines and transmission lines.
• Produces convex and double flares to SAE (45°) and DIN (37°) standards in seconds.
• For 3/16" tubing, a double flare is often required to meet ADR standards.
• Easy carry case for organized storage and on-the-go work.
• 40+ years of reliability in a tool designed for quick setup and repeatable results.

Size, standards, and compatibility

Tube size range: 3/16" to 3/8" (4.76 mm to 9.52 mm). The tool is optimized for fast, consistent flares across common automotive and light-industrial applications. It can create single or double flares, and handles SAE 45° and DIN 37° flare configurations. The 37° option is available as a separate accessory (AF59-2448).

Why this tool stands out

• Speed and consistency: achieve a professional flare in a fraction of the time of manual methods.
• Tube-friendly design: the smooth die prevents marking, ensuring clean, reliable seals on both brake and transmission lines.
• Comprehensive die set: six dies included to cover multiple tube sizes and flare types without swapping tools.
• Versatile compatibility: ideal for brake lines, fuel lines, and other critical tubing applications that require precise flares.

Usage tips and care

• Choose the correct die for your tube size before flaring.
• Align the tube squarely to ensure a true flare and prevent off-axis deformities.
• Use the included carry case to keep dies organized and protected when not in use.
• For 3/16" lines that demand a double flare to meet ADR standards, select the appropriate setup and verify flare integrity with a visual and leak check after installation.